My baby is having stomach upset from last 8 days. For first two days he had loose motions and then after giving prescribed medicines from doctor my baby had constipation. Now he has pain even during passing gas. Getting irritated easily and crying a lot. Also he has a history of stomach upset after every 2.5 months and same thing happens everytime...first loose motion then constipation. Please suggest if there is any serious provlem or it is normal.